English dictionary



Hint: Wildcards can be used multiple times in a query.

English noun: leap second

1. leap second (time) a second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation


Broader (hypernym)s, sec, second









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk